[BRIDGE]: Section fix.

WARNING: vmlinux.o(.init.text+0x204e2): Section mismatch: reference to .exit.text:br_fdb_fini (between 'br_init' and 'br_fdb_init')
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/bridge/br_fdb.c

@@ -44,7 +44,7 @@ int __init br_fdb_init(void)
 	return 0;
 }
 
-void __exit br_fdb_fini(void)
+void br_fdb_fini(void)
 {
 	kmem_cache_destroy(br_fdb_cache);
 }